regex to remove everything after the last dot in a file

Question

I'm trying to find a regex for removing everything after the last dot in a file. So far I've found ways to remove all text before the first dot, but I can't seem to find a way to select the end of the file. Could you help me on the way?

Thanks in advance

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score 22 · Accepted Answer · answered Oct 31 '13 at 15:43

22

You can try something like:

\.[^.]*$

to match everything including and after the last dot. If you don't want to include the last dot, then you can use a positive lookbehind:

(?<=\.)[^.]*$

answered Oct 31 '13 at 15:43

arshajii

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score 0 · Answer 2 · answered Oct 31 '13 at 15:52

0

Try following regex for search and replace

s/\.[^.]*$/\./

answered Oct 31 '13 at 15:52

jkshah

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Actually just `s/[^.]*$//` does the same without a backref. – tripleee Aug 18 '21 at 09:00
@tripleee that fails when there is no dot in a line, entire line will go away! – jkshah Dec 03 '21 at 16:26

Valentin Richer · Answer 3 · 2021-08-18T13:43:08.910

-1

On Bigquery, r'([^.]+).?$' works, if you want to remove the last dot.

edited Aug 18 '21 at 13:43

answered Aug 18 '21 at 08:58

Valentin Richer

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What's with the final `.?`? It will remove the last dot if the last character is a dot. – tripleee Aug 18 '21 at 09:00

regex to remove everything after the last dot in a file

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